Home / 82,214.20-123,321.30-26,810.20

Finding the Fourth Proportional to 82,214.20, 123,321.30 and 26,810.20

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Solution

The fourth proportional to 82,214.20, 123,321.30 and 26,810.20 is: 40,215.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,214.20 : 123,321.30 = 26,810.20 : x
  2. Step 2: Convert to fraction form
    82,214.20/123,321.30 = 26,810.20/x
  3. Step 3: Cross multiply
    82,214.20x = 123,321.30 × 26,810.20
  4. Step 4: Simplify right side
    82,214.20x = 3,306,268,717.26
  5. Step 5: Solve for x
    x = 3,306,268,717.26/82,214.20
  6. Step 6: Final answer
    x = 40,215.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.